Our guide to the finest power supplies you can buy today.

The best PSU for gaming in 2021

6. Seasonic Prime 1000 Titanium

One of our favorite Titanium rated PSUs. Unless you're running a full stack of power-hungry GPUs, the 1000 watts of the Seasonic is more than enough juice for a high-end machine. The 12-year warranty is a great bonus.

Form factor: ATX | Capacity: 1000 W | Efficiency rating: 80 Plus Titanium | Modularity: Full | Warranty: 12-year 

5. NZXT E850

Digitally monitored PSUs have been around for a few years, but none have come bundled with as useful software as NZXT's E-series. The all-in-one hardware monitoring tool lets you track wattage draw in real-time. 

Form factor: ATX | Capacity: 850 W | Efficiency rating: 80 Plus Gold | Modularity: Full | Warranty: 10-year 

4. Gamdias Astrape P1-750G

A light-up power supply is only natural if you're a builder on a mission to fill an entire case with RGB components. Not only is the Astrape flashy, it also boasts high-quality capacitors and fully modular cables. 

Form factor: ATX | Capacity: 750 W | Efficiency rating: 80 Plus Gold | Modularity: Full | Warranty: 10-year 

3. FSP Dagger 500W

This SFX power supply is a great choice if you're building a small form factor PC. Easy to install, and boasting high-efficiency ratings, the Dagger keeps high temperatures at bay, which is critical for mini-ITX rigs. 

Form factor: SFX | Capacity: 500 W | Efficiency rating: 80 Plus Gold | Modularity: Full | Warranty: 10-year 

2. Cooler Master MasterWatt 750W

Our favorite PSU if you're building a PC on a budget. With bronze certification, clean design with semi-modular cables, and an excellent five-year warranty, this is a safe bet for builders looking to make a saving. 

Form factor: ATX | Capacity: 750 W | Efficiency rating: 80 Plus Bronze | Modularity: Semi | Warranty: 5-year 

1. Corsair RM850x

Our favorite PSU for gaming in 2021. The latest RMX line features improved components, a quiet fan, and a fantastic price point. We've used RMX power supplies for years here at PC Gamer, and have never had an issue with any of them. 

Form factor: ATX | Capacity: 850 W | Efficiency rating: 80 Plus Gold | Modularity: Full | Warranty: 10-year 

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